Definition of "cheer"
cheer1
/t͡ʃɪə(ɹ)/
noun
countable and uncountable, plural cheers
(obsolete) One's facial expression or countenance.
verb
third-person singular simple present cheers, present participle cheering, simple past and past participle cheered
cheer2
/t͡ʃɪə(ɹ)/
noun
uncountable
(chiefly Canada, US) Cheerleading, especially when practiced as a competitive sport.